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Road & Highway Drilling & Blasting

Safety and efficiency.

We have worked on many large volume, high profile and time sensitive state, federal, and DOT public work projects over the years. Pre-splitting is key in these projects as it promotes slope stability. We utilize blasting mats to protect nearby structures and to clean-up minimal, allowing highways to be closed for short periods of time.  

Pre-split Blast Technique

Pre-splitting is a protective blasting technique we use to promote slope stability. This method creates cracks hole to hole for a final desired back wall or contour by firing a single row of holes prior to the initiation of the rest of the blast pattern. We start with rows of holes drilled on close centers to promote energy (explosives) distribution between presplit holes and not beyond. These are loaded with decoupled charges and shot instantaneously. This method promotes a shear clean back wall.
 
Various hole sizes and decoupled charges are used depending on the scope of the project. We use this method in various applications including highway safety improvements or widening, spillways for dams, rock sculptures (Crazy Horse, Mt. Rushmore), and large mines to promote slope stability.

Work With Us

We offer an exciting career path where the wilderness is your office. If you prefer non-repetitive work with frequent travel and new challenges daily, apply today.  

Equipment & Parts

We’ve relied on Furukawa Rock Drills USA to be our exclusive rock drill rig provider for over a decade. Our position as the authorized Furukawa Rock Drill dealer in the Pacific Northwest has allowed us to create an entire fleet of over 30 exclusively Furukawa drills.

McCallum Drill Equipment at Sunset

FAQs

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